Nota: Gracias a la Universidad nacional experimental y a la Ing. Patricia  l. Aular por  la infromacion globalizada sobre fundición.


High carbon tool steel
 
 
AISI Code
AISI Designation
Type of Tool steel
 
 
W
W1 to W7
High carbon water hardening steel
 
 
W1 A - 1B
Carbon
 
 
W2 - W3
Carbon Vanadium
 
 
W4 - W5
Carbon Chromium
 
 
W7
Carbon Chromium Vanadium
 
         
 
Cold work tool steel
 
 
A
A2 - A10
Air hardening, Medium alloys
 
 
D
D2 - D7
High carbon, high chromium
 
 
O
O1 - O7
Oil hardening, Low carbon
 
         
 
Hot work tool steel
 

H
H 10, H11, H12, H13
Chromium, Molybdenum
 


H14, H16, H19, H23
Chromium, Tungsten
 


H20, H21, H22, H24, H25, H26
Tungsten
 


H15, H41, H42, H43
Molybdenum
 
         
 
High speed tool steel ( Molybdenum )
 
 
M
M1, M7, M10
Molybdenum
 
 
M30, M33, M34, M42, M43, M46, M47
Molybdenum, Cobalt
 
 
M2, M3, M4
Molybdenum, Tungsten
 
 
M6, M15, M35, M36< M41, M44, M45
Molybdenum, Tungsten, Cobalt
 
 
High speed tool steel (Tungsten )
 
 
T
T1, T2, T3, T7, T9
Tungsten
 
 
T4, T5, T6, T8, T15
Tungsten, cobalt
 
         
 
Special tool steel
 
 
F
F1
High carbon, low alloys
 
 
F2, F3
Tungsten
 
 
L
L1, L3, L7
Carbon > 0.65%, Chromium
 
 
L2
Carbon <0.65%, Chromium
 
 
L6
Carbon > 0.65%, Nickel
 
 
S
S1, S3
Tungsten
 
 
S2, S4, S5, S6
Silicon
 
 
S7
Chromium
 
 
P
P1- P21
Low carbon mold steel